The Analysis of Conduction and Switching Losses in Three-Phase OHSW Multilevel Inverter Using Switching Functions

Aghdam, M. G. Hosseini; Fathi, S. H.; Ghasemi, Arman

doi:10.1109/peds.2005.1619687

Cited by 18 publications

(11 citation statements)

References 4 publications

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“…Hussein Ashram M G, Fathi S H and Gharehpetian B have suggested selecting the suitable power semiconductor devices for asymmetric multi-level inverter which is very reliable and safe [9], so that the IGBT device is selected for this work. Jeevananthan S, Nandhakumar R and Dananjayan have introduced inverted sine carrier for fundamental strengthening in PWM inverters and FPGA based implementations [10], but it is not suitable for variable frequency ISPWM.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Analysis of Variable Frequency Inverted Sine PWM Technique for a Hybrid Cascaded Multilevel Inverter

Sudhakaran¹,

Seyezhai²

2016

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In cascaded H-bridge multilevel inverter, a variable frequency inverted sine PWM technique is modeled for hybrid electric vehicles. It has a particular advantage of increasing power which is achieved using series connection of H-bridge and also this topology is capable to produce superior spectral quality with considerable improvement of fundamental voltage. The variable frequency inverted sine PWM technique produces lesser torque ripple and enhances the fundamental output voltage mainly at lower modulation index ranges. The topologies of multilevel inverter are flying capacitor, diode clamped and cascaded inverter. In the paper, we will discuss about the cascaded multilevel inverter based on inverted sine PWM technique. The two switching strategies widely used to control multilevel inverters are constant frequency inverted sine PWM (CF-ISPWM) and variable frequency inverted sine PWM (VF-ISPWM). This implies that switch utilization substantially reduces 32.35% of the constant frequency inverted sine PWM switching technique. The performance of the technique is validated in terms of Total Harmonic Distortion (THD) and Torque ripple which significantly reduces when compared to constant frequency ISPWM. The analysis of conventional triangular PWM inverter and inverted sine PWM inverter using constant and variable switching scheme is done in MATLAB Simulink and verified experimentally by FPGA Spartan 3E processor.

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Section: Introductionmentioning

confidence: 99%

Modeling and Analysis of Variable Frequency Inverted Sine PWM Technique for a Hybrid Cascaded Multilevel Inverter

Sudhakaran¹,

Seyezhai²

2016

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“…Because of the economical and technical importance of power dissipation, the designers must consider and minimize the losses of these devices [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

A Novel Switching Algorithm to Balance Conduction Losses in Power Semiconductor Devices of Multi-level Cascade Inverters

Aghdam

Fathi

Gharehpetian

2008

Electric Power Components and Systems

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The power loss in switching devices plays an important role in the design of static converters. The power dissipated during the on-state of semiconductor switches (conduction loss) is a substantial portion of the total switch losses, especially in low-frequency converters. Conduction loss may differ in switches of the converter due to the difference in duration and amount of currents flowing through them. This is, in turn, the result of dissimilar switching signals applied to the switches. To optimize the converter design, it is important to equalize the conduction losses of all main switches. To balance conduction losses in full-bridge and multi-level cascade inverters, a novel switching method is proposed in this article, and its effectiveness and validity is examined by computer simulation results and experimental works.

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“…Because of economical and technical importance of power dissipation, the designers must consider and minimize the losses of these devices [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…The leakage current during off-state is negligibly small therefore the power losses during this state can be neglected. As a result, only conduction and switching losses are usually considered [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

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A novel switching algorithm to balance conduction losses in power semiconductor devices of full‐bridge inverters

Aghdam

Fathi

Gharehpetian

2008

Int Trans Elec Energy Syst

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SUMMARYThe power loss in switching devices plays an important role in design of static converters. The power dissipated during on state of semiconductor switches (conduction loss) is a substantial portion of the total switch losses, especially in low frequency converters. Conduction loss may differ in switches of the converter due to the difference in duration and amount of currents flowing through them. This is, in turn, the result of dissimilar switching signals applied to the switches. To optimize the converter design, it is important to equalize the conduction losses of all main switches. In this paper it is shown that with conventional switching patterns in a full-bridge inverter (H-bridge cell), the switches carry different current values, therefore they bear different power losses and get unequal temperature rises. To balance conduction losses, a novel switching method is proposed and its effectiveness and validity is examined by computer simulation results and experimental works.

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The Analysis of Conduction and Switching Losses in Three-Phase OHSW Multilevel Inverter Using Switching Functions

Cited by 18 publications

References 4 publications

Modeling and Analysis of Variable Frequency Inverted Sine PWM Technique for a Hybrid Cascaded Multilevel Inverter

Modeling and Analysis of Variable Frequency Inverted Sine PWM Technique for a Hybrid Cascaded Multilevel Inverter

A Novel Switching Algorithm to Balance Conduction Losses in Power Semiconductor Devices of Multi-level Cascade Inverters

A novel switching algorithm to balance conduction losses in power semiconductor devices of full‐bridge inverters

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